No mound, no hollow, no visible feature of any kind marks the spot today. What is known comes from the turning of a plough, which at some point brought burnt stones to the surface and, in doing so, briefly revealed a fulacht fia that had otherwise vanished from the landscape completely.

A fulacht fia, sometimes called a burnt mound, is among the most common prehistoric monument types in Ireland. The typical form is a horseshoe-shaped mound of fire-cracked stones accumulated beside a trough, usually timber-lined, into which water was poured and heated by dropping in stones from a fire. The most widely accepted interpretation is that these sites were used for cooking, though brewing, bathing, and textile processing have all been proposed. They date most commonly to the Bronze Age, roughly 2000 to 500 BC. The Kilgulbin example, recorded as part of the broader work on the fulachta fiadh of the Finuge area in north Kerry, leaves almost nothing to say about its specific character or date, precisely because the ploughing that revealed it also ensured there was nothing left to see. The burnt stones are the only evidence on record.